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(min.) A massive variety of apatite.

A dark green igneous rock, consisting largely of chrysolite, with hornblende, augite, biotite, etc.

A writer of plays; a dramatist; a playwright. Lecky.

Same as Pleuron.

Of a mean spirit; cowardly; base. -- Poor"-spir`it*ed*ness, n.

Any coral of the genus Porites, or family Poritidæ.

An important genus of reef-building corals having small twelve- rayed calicles, and a very porous coral. Some species are branched, others grow in large massive or globular forms.

A rock with a porphyritic structure; as, augite porphyrite.

Same as Preterit.

Same as Preteritness.

The segment next to the flagellum of the antennæ of Crustacea.

The second segment of one of the Gregarinæ.

ercising, a disposition to advance the interest of the community or public; as, public-spirited men.

Vanadate of bismuth, occurring in minute reddish brown crystals.

Ruby silver; dark red silver ore. It is a sulphide of antimony and silver, occurring in rhombohedral crystals or massive, and is of a dark red or black color with a metallic adamantine luster.

yellow color and brilliant metallic luster, crystallizing in the isometric system; iron pyrites; iron disulphide. Hence sable coal his massy couch extends, And stars of gold the sparkling pyrite blends. E. Darwin.

A name given to a number of metallic minerals, sulphides of iron, copper, cobalt, nickel, and tin, of a white or yellowish color.

One of the Quirites.

Roman citizens.

A soft, compact variety of talc,, being an altered pyroxene. It is often worked in a lathe into inkstands and other articles.